Sink



FIG. 1 is a perspective view of a sink showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a right side view thereof, a left side view being a mirror image of the right view;

FIG. 7 is a cross-sectional view thereof taken along line 7--7 in FIG. 4; and,

FIG. 8 is a cross-sectional view thereof taken along line 8--8 in FIG. 4. 

The ornamental design for a sink, as shown and described. 